In the following reaction `HC-=CH underset(Hg^(2+))overset(H_2SO_4)to `'P'
Product 'P' will not give

Options

A. Tollen's reagent test
B. Brady's reagent test
C. Victor Meyer's test
D. Iodoform test

Explanation

To solve the question regarding the reaction of `HC≡CH` (acetylene) in the presence of `Hg^(2+)` and `H2SO4`, we need to analyze the reaction and the properties of the resulting product 'P'.

### Step-by-Step Solution:

1. **Identify the Reactants and Conditions**:
- The reactant is acetylene (`HC≡CH`).
- The reagents are mercuric ion (`Hg^(2+)`) and sulfuric acid (`H2SO4`).

2. **Understand the Reaction**:
- When acetylene reacts with `Hg^(2+)` and `H2SO4`, it undergoes hydration to form an intermediate which will eventually lead to the formation of acetaldehyde (`CH3CHO`).
- The reaction can be summarized as follows:
\[ HC≡CH + H2O \xrightarrow{Hg^{2+}, H2SO4} CH3CHO \]

3. **Identify Product 'P'**:
- The product 'P' formed from this reaction is acetaldehyde (`CH3CHO`).

4. **Determine the Tests for Acetaldehyde**:
- We need to evaluate the tests that acetaldehyde can or cannot undergo:
- **Tollens' Test**: Acetaldehyde will give a positive result (it can be oxidized to acetic acid).
- **Brady's Test**: Acetaldehyde will give a positive result (it reacts with 2,4-dinitrophenylhydrazine).
- **Iodoform Test**: Acetaldehyde will give a positive result (it contains a methyl ketone group).
- **Victor Meyer Test**: This test is used for detecting primary alcohols, and since acetaldehyde is an aldehyde and not an alcohol, it will not give a positive result.

5. **Conclusion**:
- Product 'P' (acetaldehyde) will not give a positive result for the Victor Meyer test.

### Final Answer:
Product 'P' will not give the Victor Meyer test.